基于泰森多边形的UWB危化品堆垛仓储货物定位技术

UWB location technology of hazardous chemicals stacking storage based on Thiessen polygon

目前我国危化品仓储多采用码垛堆放的存储方式,对于垛距、墙距、顶距、柱距等缺少有效的技术监管手段。在现有的定位技术中,UWB技术可以较好地监测货物码垛位置,但其精度仍无法满足当前监管要求。利用UWB定位技术监测危化品仓储中货物的码垛位置,并从UWB技术的定位原理和影响定位精度的主要因素出发,结合危化品码垛仓储的特点,提出泰森多边形矢量校正法,对危化品仓储货物进行更加精准的定位。实验证明,泰森多边形矢量校正法能够有效提高UWB定位精度,适用于危化品仓储的货物定位和监管。

Currently, domestic hazardous chemicals tend to be stacked in the warehouse without effective methods of monitoring stacking distance, distance from the wall, zenith distance and column spacing. Compared with other positioning technology, UWB technology can get a relatively accurate position of goods, but not accurate enough to meet the existing regulatory requirements. Combining with storage characteristics of hazardous chemicals, the research analyses positioning principles and the main factors that affects positioning accuracy of UWB （ultra-wide band） technology and suggests to monitor positioning of hazardous chemicals in the warehouse by UWB technology. The Thiessen polygon vectors compensation method is proposed to improve the positioning accuracy of hazardous chemicals in the warehouse. It is proved by experiments that this method can effectively improve the positioning accuracy and is suitable for the positioning and monitoring of hazardous chemicals.